Nut-lock.



No. 819,947. PATENTED MAY 8, 1906. J. STRAGK.

NUT LOCK.

APPLICATION FILED LIAR.7. 1905.

2 SHEETS-SHBBT 1.

* hun.

INVENTURZ PATBNTED MAY 8, 1906.

J. STRAGE.

NUT LOCK.

WITNESSES: "E |NVENTORI 'Juhu ERIK, BY gaf/6?* mmg-ATTORN Y man:

NITE) STATES PATENii-R. OFFICE.

JOHN STRAOK, OF NEWARK, NEW JERSEY, ASSIGNOR OF ONE-HALF TO FRANK BRABSON, OF NEWARK, NEW JERSEY.

NUT-LOCK.

Specification of Letters Patent.

katented May 8, 1906.

Application filed March 7, 1905- Seral No. 248,827.

Tol all lull/m, it may concern:

Be it known that 1, JOHN STRAoK, a citizen of the UnitedStates, residing at Newark, in the county of Essex and State of New Jersey,

have invented certain new and useful Improvements in Nut-Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which io it appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of this-specification.- The present invention hasreference gener- 15 ally to-improvem'ents in nut-locks;v and the 4. invention relates more particularly to a novel nut-lock and nut for bolts and axles with a view of providing a simple device of the general character hereinafter more full set forth 2o which permits ofthe nut to be easi y screwed upon the screw-threaded end of the bolt o'r axle, but. prevents the@ accidental displacement and loosening of the' nut upon such screw-threaded portion, especially when subjected to great arring.

My present invention, therefore, has for its principal objects to provide a sim "ly-con- `struc'ted nut-lock and nut for bolts o the various kinds and for the axles of vehicles which prevents the accidental displacement of the Anut from the screw portion of the bolt `or axle, (but which is of such construction that the nut can be removed at any time from the bolt or sides of the nut, but is otherwise immovably y aflixed upon the said screw portion of the nut or axle.

A further object ofthis-invention is to prof'or securing together the variousparts of machines or the lish-pla-teszto rails and for use, further, on v\'rel1icleaxl s jor "otherl ,places where the screw-threaded end of the 'axleor bolt is clear and free,itherebyfproviding a lock which shall be of ra cheap and Asimple-coristruction and shall be most effective inits y operation.

primarily, in the novel nut-lock-'and -nut here'- inafter set forth, and, furthermore 'tion, said view' showing. the nut-.screwe down tightly against?v accidental displa(J an end view of the 'said parts looking'- in the direction of the arrow n: in said Fig. 1. Fig 43' 1. axle by the application of a wrench upon the vide a nut-lock constructioninwhichl-thej parts have been reduced to a minimum. and: n which is especially adapted forfluse on bolts` lvention in view the's'aid"inventionconsists# vention consists in the various arrangements `and combinations, of parts, as well as in thef details of the construction of the saine, all of Which will be hereinafter more fully del..y scribed and then finally embodied in the clauses of the claim, which are appended to and form an essential art of this specification.

The invention is c earl accompanying drawings, in wh1ch 6.6.!A illustrated in theaff;

Figure 1 is a sectional p representation ,of two arts of a machine, with a side viewof a;

mac lne-bolt provided with a nut-lockand nut embodying the principlswf thisinven'- ment or loosening of the nut u on the screwthreaded end portion of the bo t; and Fig'l2 is is a transverse section of a rail and fish-.plat with a longitudinal section of a bolt and` lock and nut made according to the prm'clil" ples of this invention; and Fig. Ltis a tra'nsverse section on an enlarged scale, said'section being taken through line 4 4 in said Fig. 1 of the drawings, the spring, however, being shown in elevation. Fig. 5 is a ers ective view of a washer and connected` -hol ing. or locking spring. Fig. 6 is a perspective view of an ordinary carriage-bolt provided with a nut-lock and nut embodying the improvement, and Fig. 7 is a cross-section of the form of washer employed in the construction shown in said Fig. 6. Fig. 8 is a longitudinal vertical section of a bolt, nut-lock, and nut ofa slightly-modified construction, but still embodying the principal features of this invention.- Fig. 9 is a transverse section, on an en- .larged scale, the said section being taken on .'line 9 A9 in saidFig. 8, with the washer shown in elevation; and Fig. 10 is a side view of the washeremployed in the construction shown insaid Figs. 8 and 9.

Similar characters of reference are employved in the above-described views to indicate corresponding parts.

Referring now to the said drawings, the reference character 1 indicates a bolt, which may 1 ',b'egprovided with the polygonal head 2,v as

. `llith the various objects of. Inyjpresent-inj Vshown in Fig. 1, or with a spherical head 3, as

' 'represented in Fig. 3 of the drawings, the said bolts being used with any suitable pieces of IOO log

machinery, as 4 and 5, or forsecuriiig 'the :u

iish-plates 6 u on opposite sides of the web case of the application of the jaws ol a of a rail 7, as i lust-rated in said Figs. 1 and 3 of the drawings.

Upon the screw-threaded portion 8 of the bolt is slipped a disk washer 9, having a central opening 10, with a teat or projection 11 extending into said opening, the said teat or projection 11 being arranged and projecting into a longitudinally-extending slot or groove 12, formed in the screw-threaded portion 8 of the bolt 1, substantially in the manner illustrated in Figs. 2, 3, and 4 of the drawings. The said disk or washer 9 is provided with a laterally-extending post or projection 13, which may be of any suitable configuration, whether square, triangular, cylindrical, or oblong, and has attached thereto by means of a suitable holding portion 15 a sprin 14. This said spring 14 is curved substantial y in the manner shown in Figs. 4 and 5 of the drawings and has on its other free end portion a holding or lookin member 16. This holding or locking mem er 16 is preferably of the V-shaped coniiguration shown, having the free end 17 and the lower rounded edge 18, substantially as shown and for the (purposes to be presently more fully describev The nut is indicated by the reference character 19, having the usual screw-threaded hole 20 for screwing itupon the screw-threaded end portion 8 of the bolt, the said nut being formed with an annular flange 21, forming, with the under surface of the said nut, a suitable chamber 22. The inner surface of the said annular flange 21 is provided with suitably-disposed corrugations, flutings, or ribs, as 23, formed with channels or grooves 24 between each pair of said corrugations, utings, or ribs 23. The arrangement of the said flange 21 and' its corrugations, iutings, or ribs 23 is suchthat when the nut 19 is screwed upon the screw-threaded portion 8 of the bolt at a certain point the spring 14 and the disk or washer 9 will enter the charn- -ber 22 of the nut, and the holding or locking end portion or member 1-6 of the said spring will be brought in engagement with the said corrugation`s, iiutings, or ribs 23-and the channels or grooves 24 between them. In screwingthe said nut upon the bolt by turning the nut in the direction of the arrow'y in said Fig. 4 the tension of the spring 14 is such that the said oorrugations, flutings, or4 ribs will easily slide over the end and rounded portion 18 of the holding or locking portion or member 16 of the spring; but any return move ment of the nut in the direction of the arrow e in said Fig.'4 will be impossible, owing to the fact that such movement of the nut brings the end 17 of the holding portion or member 16 directly against the corrugation, fluting, or rib 23 adjacent to said end 17, whereby .the unscrewing movement of the nut is impossible unless great force is applied to the polygonal sides of the nut, as in the wrench thereto. Thepurpose of the previously-Inentioned teat or tongue 11 of the disk or washer, which extends into the longitudinal groove or channel 12 in the bolt, is to guard against any rotary movement of the said disk or washer and its spring upon the said bolt, whereby a positive and effectivelyoperating nutflock is the result.

The arrangement and manner of securing the spring 14 at its one end to the face of the Washer, so as to be capable of oscillation in the plane of the face of the washer, is such that the vibratory slide member formed by the parts 16, 17, and 18 responds with each fluting as the nut is screwed on, because the action of the nut in this case is greater than the resisting power of the spring; but during any tendency of the nut unscrewing the resistance oEered by the spring is greater than the unscrewing power of the nut. Hence the nut cannot become unscrewed except with the application of additional power applied by the operator upon the nut to make the unscrewing power upon the nut greater than the resistance of the spring.

It will thus be clearly evident that when the nut is tightly screwed home, so as to bring :the disk or Washer firmly against the face of the casting or part or against the fish-plate 6, as shown in Figs. 1 and 3 of the drawings, the said nut will be held and lo cked in positionv against any accidental unscrewing or loosening of the nut no matter how much and how great the jarring may be.

When the nut-lock and nut are to be used with a carriage-bolt 25, (shown in Fig. 6 of the drawings,) a washer or disk 26 is used, which is provided with a locking or holdin spring 14 in the manner above described an for engagement with the nut 19 aforesaid. With this formof washer or disk 26 I dispense with the inwardly-extending teat or tongue 11 used with the form of washer shown in Figs. 3, 4, and 5 of the drawings, the said washer or disk 26 being provided upon its opposite face with one or more points or rongs 27, which firmly embed themselves 1n the face of the body with which this form of nutlock and nut are used to prevent the turning of the said washer or disk 26 when the nut is screwed home and locked or held against turning in precisely the same manner as set forth in connectionwith the'form of device shown in Figs. 1 to 4, inclusive.

In Figs. 8, 9, and of the drawings I have shown a machine-bolt rovided with a nutlock and nut of a modi ed form of construction, but still embodying the features of this invention. i

In Fig. 8 the reference characters 28 and 29 indicateany two parts whichare to be bolted together, and 30 isa bolt* provided wtha 'head-31' andscrew-threaded .portion 32. In

this construction of nut-lock the washer or IOO ITO

disk 33 is formed with' a centrally-disposed n hole for slipping it upon the bolt 30, the said hole being surrounded by an .annular fiange 34, formed with the alternately-disposed corrugations, flutings, or ribs 35 and depressions or grooves 36. The nut 37 is made with an annular flange 38, forming a chamber 39, and connected with a suitable post or pin 40, extending from the inner face of the said nut and projecting into said chamber 39, is the holding portion or member 42 of a sprin 41. This sprlng is madewith a holding or locIcing portion or member 43, which can be brought into its operative 'engagement with the corrugations, fiutin'gs, or ribs 35 and grooves or depressions 36 of the washer or disk 33, as will be clearly evident'from an inspection of Figs. 8 and 9 of the drawings. That the said washer or disk33 will be prevented from turning upon the bolt 30 thelatter may be provided with a longitudinally-extending groove or slot 44, intowhich extends a teat or projection 45 on said washer or disk 33, as will be clearly understood-from an inspection of said Figs. 8 and 9 of the drawings. The manner of producing the held or locked engagement of the said nut-lock with the nut is substantially that described in the foregoing specification, and the same will be 'clearly understood from the said Figs. 8 and 9.

yFrom the foregoing -descri tionof my invention it will be clearly evi ent that I have devised a simply-constructed `and operative Y device'which will securely and positively lo ck or hold the nut upon the bolt against any accidental displacement after the holding devices of the washer or disk and the nut have been brought. in engagement, and especially when the -nut is drivenhome, but when desired the nut can be forcibly removed byunscrewing and without the necessity of destroying-or iamaging or removing any part of the nutock.

Having thus described my invention, what I claim is-- 1. A nut-lock comprising a lwasher and a nut adapted to beiscrewed upona bolt; aixedk holding-point located betweenf'the adjacent faces of said washer and nut, a vibrator holding 'device connected at one end with 'said fixed holding-point, said holdingdevice being made from spring metal and'having an en agin or retaining portion at its o posite en, sai holding device being adapted to oscillate in the plane of the face of said washer, and a holdingmeans also located between the adjacent faces of said washer vand nut, with which the said en aging or retaining' portion of said holding evice is brought in engagementv and yields," during'the rotative movement of the nut when screwedhome, and all'being arranged so that when the nutis screwed on the power lexerted by the nut 1s greater than the resistance of. the engaging or, retaining portion of the holding device, ut;

when the nut tends to unscrew, the resistance I of the holding device is greater than the unscrewing power of the nut, under normal conditions, unless when additional manual power is applied to the nut, substantially as and for the'pur oses set forth. v 2. A nut-loc comprising a washer and a nut adapted to be screwed upon a bolt, a fixed holding-point located between the adjacent faces of said washer and nut, a vibratory sprin connected at its one end with said. fixed olding-point, said spring having an enga ing or retaining portion at its opposite en said spring being adapted to oscillate in the plane of the face of the washer, anda holding means also located between the adj acent faces of said washer and nut, with which the enga ing or retaining portion ofsaid s ring 1s rought in engagement and-yields uring the rotative movementl of the nut when screwed home, and all being arranged .1 so that when the nutis screwed on the power exerted by-the nut is greater than the resistance of -the engaging or retaining portion of the spring, but when the nut` tends to unscrew, the resistance of said spring is greater f than the unscrewing power of the nut, under normal conditions, unless when additional manual power is applied to the nut, substantially as and for the purposes set forth.

3. A nut-lock comprising a'washer and a nut adapted to be screwed upon a bolt, a fluted holding means,l a vibratory holdingspring oscillating in the plane of the face of t e washer, said s ring having one of its end portions fixed, and) a V-shape taining member on said spring adapted to be brought in engagement with said fluted holding means, substantiallyas and for the purposes set forth. Y

4. A nut-lock comprising a washer and a nut adapted to be screwed upon a bolt, said nut having a chambered portion, and afluted -holding means in said chambered portion, a vibratory holding-sprinor oscillating in the plane of the face o the wasclier, said'spring havlng one of its end portions fixed, and a V- shaped holdin .or retaining member on said spring ada te to be brought in engagement with said uted holding means, substantially asl and for the urposes set forth.

5. In a nutook, the combination, with a bolt, of a washer-on said bolt, a nut screwed on said bolt, a fixed holding-point extending laterally from the face'of-sald washer, a vibratory holding device fixed at its one end to said-fixed holding-point on said washer, said holding device being made from spring metal and having an engaging or retainin ortion at its opposite an free end, said ho ing device belng adapted to oscillate in the plane of the face of the washer, and means on said nut adapted to be moved lon itudinally with the nut against and in slidab e engagement with.

.'saidengaging -or retaining portion of said ralf v Y l Y i IOO holding or-reh olding device, and yielding against Vthe rotat1ve movement of the nut when screwed home, and all being arranged so that when the nut is screwed on the power exerted by the nut is greater than the resistance of the free end of the holding device, but when the nut tends to unscrew, the resistanceof the holding device is greater than the unscrewing power of the nut, 'under normal conditions, unless when additional manualpower is applied to the nut, substantially as and for the purposes set forth.

6. In a nut-lock,l the combination, with a bolt, of a washer on said bolt, a nut screwed on said bolt, said nut being provided with a chamber, a fixed holding-point extending laterally from the face of said washer, a vibratory holding device ixed at its one end to said fixed holding-point on said Washer, said holding device being made from spring metal and having an engaging or retaining portion at the opposite and free end, said holding device being adapted to oscillate in the plane of the face of the washer, and means within the chamber of said nut adapted tobe moved longitudinally with the nut against and in slidable engagement with said engaging or retaining portion of said holding device, and yielding against the rotative movement of the-nut when screwed home, and all being arranged so that when the nut is screwed on the power exerted by the nut is greater than the resistance of the free end of the holding de? vice, but when the nut tends to unscrew, the resistance of the holding device is greater than the unscrewing power of the nut, under normal conditions, unless when additional manual power is applied to the nut, substantially as and for the purposes set forth.

7. In a nut-lock, the combination, with a bolt having a longitudinally-extending channel or groove, of a washer on said bolt, a teat on said washer projecting into said channel or groove, a nut screwed on said bolt, a vibratory holding device fixed at its one end to the face of the washer, said holding device oscil lating in the plane of the face of the washer and at right angles to the plane of the longitudinal axis ofthe bolt, and means on said nut, adapted to be brought in slidable enga ement withthe free end of said vibratory ho ding device when the nut is screwed home, and all arranged in such a manner, so that when the nut is screwed on, the power exerted by the nut is greater than the resistance of the holding device, but when the nut tends to unscrew, such resistance of the holding de vice is greater than the unscrewing power of the nut, unless additional manual power isapplied to the nut, substantially as and for the purposes set forth.

8. In a nut-lock, `the'combina-tion, with a bolt having a longitudinally-extending channel or groove, of a washeron said bolt, a teat on said washer projecting into said channel or groove, a nut screwed on said bolt, .said nut being provided with a chamber, a vibra? tory holding device oscillating in the plane of the face of the washer andy at right angles to the plane of the longitudinal axis .of the bolt, and means in the chamber of said nut, adapted to be brought in slidable enga ement with the free end of said vibratory hoIding device when the nut is screwed home,and all arranged in such a manner, so that when the nut is screwed on, the power exerted by the nut is greater than the resistanceof the holding device, but when the nut tends to un.- screw, such resistance of the holding device is greater than the unscrewin power or` the nut, unless additional manual power is applied to the nut, substantially as and for the purposes set forth.

9. In a nut-lock, the combination, with -a bolt, of awasher on said bolt, a nut screwed on said bolt, a fixed holding-point extending laterally'fromvthe face of said Washer, a vibratory spring secured at its .one end to .said fixed holding-point ,on said washer, Said spring oscillating in the plane of the face of the washer,` and having an engaging or retaining portion at its opposite and free end, and means upon said nut with which the said engaging or retaining porton of the said spring is adapted to be brought in slidable engagement, and yielding against the rotative movement of the nut when screwed home, and all being arranged so that when the nut is screwed on the power lexerted by the nut is greater than the resistance .of the free end of said spring, but whenthe nut tends -to .unscrew, the resistance of the said spring is greater than the unscrewing powerof` the nut, under normal conditions, unlessvwhen additional manual power is applied to thenut, substantially as and for the purposes set forth.

10. In a nut-lock, the combination, with a bolt, of a washer on said bolt, a Anut screwed on said bolt, saidnut being provided witha chamber, a vibratory spring secured at one end to the face of said washer, said spring oscillating in the-plane of the face ofthe washer and at rightangles to the plane of the lon itudinal axis of the bolt, and means t e and free end o f said spring is .brought in slidable engagement when the nut is 'screwed home, and all arranged in such a manner; so that when' the nut is screwedon, .the power exerted-by the nut is greater than the resistance of the holding device, 'but Awhen thev nut IOS IIO

chamber of said ,nut with which the .opposite bratory spring secured at one end to the face'4 of said washer, said spring oscillating in the plane of the face of the washer and at right angles to the plane of the longitudinal axis of the bolt, and means uponsaid nut with which the opposite and fre'e end of said spring is brought in slidable engagement 1o when'the nut is screwed home, and all arranged in such a manner, so that when the nut is screwed on,`the power exerted by the nut is greater thanV the resistance of the holding device, but when the nut tends to unr5 screw, such resistance of the holding device is greater than the unscrewing power of the nut, unless additional manual power is applied to the nut, substantially as and for the purposes set forth,

A2o 12. In a nut-lock, the combination, with a bolt having a longitudinally-extending channel or groove, of a washer on said bolt, a teat on said washer projecting into said channel or groove, a nut screwed on said bolt, said nut being provided with a chamber, a vibratory spring 'secured at one end to the face of said washer, said spring oscillating in the plane of the face of the washer and at right angles to the plane of the longitudinal axis of 5o the bolt, and means within the chamber ofsaid nut with which the opposite and free end of saidspring is ,brought in slidable engagement when the nut is screwed home, and all arranged in such a manner, so that when the nut is screwed on, the power exerted by the nut is greater than the resistance of the holding device, but when the nut tends to unscrew, such resistance of the holding device is greater than the unscrewing power of the 40 nut, unless additional manual power is applied to the nut, lsubstantially as and for the purposes set forth.

- 13. In a nut-lock, the combination, with a bolt, of a washer on said bolt, a nut screwed on said bolt, a series of corrugations and depressions on said nut, and a vibratory sprin secured at its one end to the face of sai washer, said spring oscillating inthe plane of the face of the washer and at right angles to the plane of the longitudinal axisof the bolt,

and having its op osite end in slidable engagement with sai corrugations and depres- A' sions, and all arranged in such a manner, so that when the nut is screwed on, the power exerted by the nut is greater than the 'resist ance of the holding device, but when the nut tends to unscrew, such resistance of the hold-l ing device is greater than the unscrewin powerof the nut, unless additional manua power is applied to the nut, substantially as and for the purposes set forth. y

14. In a nut-lock, the combination, with a bolt, of a washer on said bolt, a nut screwed on said bolt, an annular angeon said nut, a

.65 series of corrugations and depressions upon the inner face of said f lange, and a vibratory spring secured at one end to the face of said washer, said spring oscillating in the plane of the face of the washer and at right angles to the plane of the longitudinal axis of the bolt, 7o and having its opposite end in slidable engagement with sald corrugations and depres-` sions, and all arranged in such a manner, so that when the nut 1s screwed on, the power exerted by the nut is greater than the resistance of the holding device, but when the nut tends to unscrew, such resistance of the holding device is greater than the unscrewin power of the nut, unless additional manna power is applied to the nut, substantially as 8o. and for the purposes set forth. l

15. In a nut-lock, the combination, vwith a bolt having a longitudinally-extending channel or oove, of a washer on said bolt, a teat on sai washer projecting into said channel or groove, a nut screwed on said bolt, an annular flange on said nut, a series of corrugations and depressions upon the inner face of said ilange, and a vibratory spring secured at one end to the face of said washer, said spring 9 0 oscillating in the plane of the face of the washer and at right angles to the plane of the longitudinal axis of the bolt, and having its opposite end in slidable engagement lwith said corrugations and depresslons, and all arranged/in such a manner, so that when the nut is screwed on, the power exerted by the nut is greater than the resistance of the hold` ing device, but when the nut tendsto unscrew, such resistance of the holding device is roo greater than the unscrewing power of the nut, unless additional manual power is applied to the nut, substantially as and for the purposes set forth. A 16. In a nut-lock, the combination, witha bolt, of a washer on said bolt, a laterally-extending post on said washer, a vibratory -spring connected at its one end with said post, said spring oscillating in the plane of the ace of the washer and at right angles to the 1 1o plane of the longitudinal axis of the bolt, and' an angular holding member at the opposite end of said s ring, a nut screwed on said bolt', an annular ange on said nut, and a series of corrugations and depressions upon the innerv 1 15 face of said flange with which the angular holding member of said spring is adapted tof be brought in slidable engagement, and all arranged in such a manner, so that when the nut is screwed on, the power exerted b the nut is greater than the resistance of the olding device, but when the nut tends vto unscrew, such resistance of the holding device is greater than the unscrewing power of thel nut, unless additional, manual power is ap-'r2 5 plied to the nut, substantially as 'and for'the f' purposes set forth.

17. In a nut-lock, the combination, with a bolt having a longitudinally-extendingchannel or groove, of a washer on said bolt, a teat on -said Washer projecting into said channel or groove,4 a laterally-extending post on said Washer, a vibratory sprin connected at its one end with said post, sai spring oscillating in the plane of the face of the Washer and at right angles to the'plane of the longitudinal axis of the bolt, and an an ular holding member at the opposite end 0% said spring, a nut screwed on said bolt, an annular flange on said nut, and a series of corrugations and depressions upon theinner face of said flange with which the angular slidable member of .said spring is adapted to be brought in holdlng engagement, and all arranged in such a manner, so that when the nut 1s screwed on,

4th .day of March, 1905.

JOHN STRACK.

Witnesses: ,v. J FRANK BRABsoN,

FREDK. C. FRA-ENTZEL.

In testimony that I claim the invention set l forth above I have hereunto set my hand this 2 5` 

